“This discovery not only sets a new standard for superelastic materials but also introduces new principles for material design, which will undoubtedly inspire further breakthroughs in materials science,” Xu said.

The newly developed Ti-Al-Cr shape-memory alloy is part of the titanium alloy family, known for being lightweight, strong, biocompatible, and resistant to corrosion. What makes this alloy particularly exciting is its ability to maintain superelasticity across a wide temperature range, making it highly suitable for extreme environments such as deep space and deep-sea exploration.

In space missions, materials must endure harsh conditions while remaining functional. Current superelastic tires made from nickel-titanium (Ni-Ti) for upcoming Moon and Mars missions have limited temperature ranges, which could affect their durability.